Logan smith



L. SMITH.

WRENCH.

APPLICATION FILED FEB-5.1916.

1 1 96,939 Patented Aug. 29, 1916.

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l v v UNITED STATES PA T @FFTCE.

LOGAN SMITH, OF OAKLEY, ILLINOIS, ASSIGNOR TO EDDIE E. SMITH, 0FDECATUR, ILLINOIS.

WRENCH.

Specification of Letters Patent.

Patented Aug. 29, 191*.

To all whom it may concern:

Be it known that I, LOGAN SMITH, a citizen of the United States,residing at Oakley, in the county of Macon and State of Illinois, haveinvented certain new and useful Improvements in lVrenches; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same. I

This invention comprehends certain new .and useful improvements inwrenches and has for its primary object to provide a device of thischaracter which will be of eX- tremely simple construction and operationas well as cheap to manufacture and highly eficient in use.

The invention has for another object to provide a device of thischaracter in which the pawl for engagement with the rack teeth and theshank of the tool may be resiliently retained in operative position bymeans ofa leaf spring which has one end secured in the forward portionof the movable jaw, one end of the pawl projecting from the front faceof the movable jaw for engagement by the operators finger to disengagethe nose of the pawl from the rack teeth and swinging said pawl upon itspivot against the tension of the leaf spring.

The invention has for a further object to provide a wrench 'of thischaracter which will be constructed in such manner that it may bereadily and easily operated and should any of the parts become worn orbroken, they may be readily replaced at small cost.

With these and other objects in view as will become more apparent as thedescription proceeds, the invention consists in certain novel featuresof construction, combination and arrangement of parts as will behereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which Figure 1is an elevation of my improved wrench with parts in section, and Fig. 2is a detail transverse section on the plane of line 22 of Fig. 1.

Referring in detail to the drawings by numerals, 1 designates the shankhaving the handle members 9 secured on its one end and the regularstationary jaw 3 mounted upon its opposite end, while the rack teeth 5are formed on the front face of said'shank 1 for a limited distance fromthe handle members 2.

Slidably mounted for longitudinal movement upon the shank 1 is a movablejaw 6 which has its front side open, as shown at 7, and a pawl 8 mountedtherein and adapted to swing upon the pivot pin 9 which eX- tendstransversely through the front portion of said jaw 6. The pawl 8, whenin its engaging position, has its nose 10 en gaged with the rack teeth5, previously men tioned. The pawl 8 is resiliently retained 111 itsengaging position by means of a spring 11 which has its inner endengaged against the shoulder 12 formed at the enlarged end of said pawl8, adjacent the pivot pin 9 for said pawl 8. The leaf spring 11 may bemoved longitudinally through the opening 13 in the gripping portion ofsaid movable jaw 6, said slot 13 being inclined to place the leaf spring11 at the proper incline, as will be readily understood by referring tothe drawings. The leaf spring 11 is held in position by means of a screw14 or the like secured in the side of the movable jaw 6 abutting thehandle and engaged through said leaf spring 11, the head of said screw14 being flush with the face of the jaw 6 sliding upon the smoothportion of the front face of the shank 1, as will be readily understoodby referring to the drawings, thereby making it impossible for the screw1,4 to work loose or the spring 11 to move in either direction, or beremoved without first removing the movable jaw 6 and then removing orloosening the screw 14. This assures the spring 11 being held in properposition and at the same time making it possible for said spring to bereadily replaced, when desired, which is a great advantage as allsprings in tools of this character frequently become inefiective orbreak, making it necessary to replace the same, to restore the tool toproper condition and eflicienc While I have shown and described thepreferred embodiment of my invention, it will be understood that minorchanges in the details of construction, combination and arrangement ofparts may be made without departing from the spirit and scope of theinvention as claimed or sacrificing any of the advantages thereof.

XV hat is claimed is A wrench comprising a shank, a stationary jaw onone end of said shank, a handle formed on the opposite end of saidshank, said shank provided with rack teeth on one edge, a movable jawslidably mounted upon said shank and having a recess formed in one face,a pawl mounted in said recess, its nose normally engaged with saidteeth, a fiat leaf spring rigidly secured by one of its ends in one Wallof said movable jaw and having its opposite end extending into saidrecess for engagement against the inner side Copies of this patent maybe obtained for five cents LOGAN SMITH.

Witnesses EDDIE SMITH,

WV. H. SMITH.

each, by addressing the Commissioner of Patents,

Washington, D. G.

